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CDNA highlights
March 2, 2010
Single-molecule chemical reactions on DNA origami
Researchers at the Danish National Research Foundation’s Centre for DNA Nanotechnology (CDNA) at iNANO demonstrate that it is possible to control chemical reactions on DNA nanostructures and generate images of reactions of individual molecules. The results were published on 28 February in Nature Nanotechnology. The article is available here
Electrochemical assay for attomole detection of DNA
The project was carried out in collaboration between CDNA and DTI. We combined a magnetic bead sandwich hybridization capture assay used for pre-concentration and bioseparation of target DNA, with a lipase-based amplification and electrochemical readout system. The signal amplification in the DNA assay is based on the catalytic activity of a lipase enzyme, and this “electrochemical blotting” concept is principally new. The use of this hydrolytic enzyme allowed for close to few-molecule detection of lipase-labeled DNAs at the electrode surface, due to accumulation of the catalysis product (ester bond cleavage and removal of the redox label from the zone of electrochemical reaction). The developed electrochemical lipase- and magnetic beads-based sandwich hybridization assay represents a fundamentally new electrochemical approach for sensitive DNA detection.
Professor Kurt Gothelf receives the EliteForsk award
Professor Kurt Vestager Gothelf, Department of Chemistry and iNANO, and director the of the CDNA center, recieves one of five EliteForsk (elite researcher) awards from the Minestry of Science, Technology and innovations.
"The Nano box" elected as the top Danish research result of 2009
The Danish engineering journal, Ingeniøren, has elected the DNA nano-box as the research breakthrough of the year 2009 for science and technology. In May 2009, researchers from CDNA, iNANO and University of Göttingen published an article in the journal Nature that described the design and production of the smallest box in the world.
March 2, 2010 
February 12, 2010